Aura spells target and the equip activate ability targets. However, the attaching itself doesn't target, and there are ways to get both Auras and Equipment attached to something without targetting. For example, even if you control Spiritual Asylum
to give your creatures shroud, Vulshok Battlemaster
would still be able to attach all Equipment on the battlefield to itself. Or, if there's a Cloak and Dagger
and a Neurok Commando
enters the battlefield, the Cloak and Dagger
's triggered ability will allow it to attach itself to the Commando.